Door-securer and alarm combined.



No. 784,637. PATENTED MAR.'14, 1905. D. N. STEWART.

DOOR SEGURER AND ALARM COMBINED.

APPLICATION FILED APR. 29, 1904,

""ITJVESSES.

UNITED STATES Patented March 14, 1905.

PATENT OFFICE.

DANIEL N. STEINART, OF DETROIT, MICHIGAN, ASSIGNOR OF ONE-HALF TO JOHNMCPHERSON, JR, OF DETROIT, MICHIGAN.

' DOOR-SECURER AND ALARM COMBINED.

SPECIFICATION formingpart of Letters Patent No. 784,637, dated March 14,1905.

Application filed April 29, 1904:- Serial No. 205,478.

To (LZZ whom it may concern:

Be it known that I, DANIEL N. STEWART, a citizen of the United States ofAmerica, residing at Detroit, in the county of Wayne and State ofMichigan, have invented certain new and useful Improvements in aDoor-Securer and Alarm Combined, of which the following is aspecification, reference being had therein to the accompanying drawings.

IO This invention relates to improvements in devices for temporarilysecuring a door closed against its being opened from the outside, andespecially to that class of such devices which may be quickly applied toany ordinary swinging door and are of a size to adapt them to be carriedin the pocket, the object of the invention being to provide such asecuring device with means whereby it may be readily adjusted forapplication to any door and to combine 2O therewith a suitableburglar-alarm, all being so constructed, arranged, and combined that avery light, simple, cheap, and inexpensive device is secured and whichalso has certain other new and useful features, all as herein- 5 aftermore fully described, and particularly pointed out in the claims,reference being had to the accompanying drawings, in which Figure 1 is aperspective view showing the device in position for use; Fig. 2, aneleva- 3 tion of the same when not in use and showing in dotted linesthe diiferent positions of the parts; and Fig. 3, an edge view of thesame, showing the manner in which the holding-plate and filling-stripare spread apart to fill the crack between the edge of the door and itsjamb.

As shown in the drawings, 1 is a metal plate provided withlaterally-extending integral spurs 2 atone end to engage the door-jam'b,

4 and pivotally secured to the opposite side of said plate near itsopposite end by a rivet 3 is a supporting-plate 4 and a filling-strip 5of thin spring metal between said plates. The supporting-plate 4 is bentat right angles near one end and extends laterally outward, forming anabutting ledge or stop 6 to engage the face of the door. If the doorfits tightly in its casing, so that there is but a narrow crack betweento place the device, the supportingplate 4: and strip 5 are turned ontheir pivot 5 to the position shown in dotted lines in Fig.

2 to allow the door to swing closed and the holding-plate held with itsspurs against the inner face of the door-jamb and the door then closed,thus forcing the spurs into the jamb. When there is a wide crack betweenthe door and jamb, only the supportingplate A is turned out of the way,and the strip and holding-plate 1 are spread apart, and any suitablewedge, as shown in Fig. 3, inserted between to hold the same apart, sothat when the plate is held in place and the door closed the spurs willbe forced by the door into the jamb. By then turning thesupporting-plate 4: to bring its laterally-turned end adjacent to theface of 6 5 the door the same is securely held closed, care being takento engage the spurs with the jamb at such adistance from its edge thatthe holding-plate will project far enough to allow the supporting-plateto be freely turned into line 7 therewith.

On the supporting-plate adjacent to its outwardly-turned end is securedan outwardlyprojecting stud 7, and on this stud adjacent to the plate ispivoted an arm 8, normally held in engagementwith anoutwardly-projecting flange 9 on the end of the supportingplate 4byaspring 10, coiled around said stud and secured at one-end to the studwith its opposite end engaging the arm.

When the device has been placed in position to secure the door, the arm8 is turned up against the action of its spring into engagement with theupper edge of the laterally-extending end 6 with its upper end extending5 over and beyond the said end of the plate and held in this position bya spring projection 11, formed by striking up the metal of the plate.

A loop 12 is formed on the free end of the arm 8 to receive a cartridge13, and on the flange 9 9 is a small projection 1A, which serves as afiring-pin to explode the cartridge when the same is brought down uponthe pin by the spring-actuated arm which is disengaged from its holdingprojection by the initial opening or inward movement of the door towardthe abutment 6. If desired, small paper or metallic caps may be usedinstead of blank cartridges by leaving off the firing-pin or projectionand plugging the 'loop to form a socket to receive the cap.

This construction combines in a very simple and compact device means forsecuring the door and means for giving an alarm, providing a devicewhich is inexpensive to manufacture and of a size and weight adapting itto be carried in the pocket. The flexible filling-strip permits itsbeing sprung away from the holding-plate and any suitable temporaryfilling put between, thus obviating the necessity of providing a numberof filling-strips which would add materially to the weight and size ofthe device.

Having thus fully described the invention, what I claim is- 1. Thecombination with a holding-plate provided with means for engaging thedoorjamb, of a supporting-plate carried by said holding-plate andprovided with means forepposing the opening of the door, an armpivotally secured at one end to said supportingplate, a spring toactuate said arm, and means on the said plate for holding said armagainst the action of its spring in a position to be engaged andreleased by the initial opening movement of the door.

2. The combination with a holding-plate provided with means for engagingthe doorjamb, of a supporting-plate pivotally secured near one end tothe holding-plate and provided with means for opposing the opening ofthe door at one end and with a projection at the opposite end, an armpivotally secured at one end to said supporting-plate, a spring tonormally hold said arm in contact with the said projection, yieldingmeans on the plate for engaging and holding the arm in a position to beengaged by the initial opening movement of the door and be releasedthereby to contact the projection with a blow, and means for holding anexplosive in position to be exploded by the blow.

The combination with a holding-plate provided with means for engagingthe doorjamb, of a supporting-plate pivotally secured near one end tothe holding-plate, an abutment on the opposite end of saidsupportingplate to oppose the opening of the door, an arm pivotallysecured at oneend to the supporting-plate near the abutment, a flange onthe supporting-plate, a spring to normally hold the arm in contact withthe flange, a spring projection on the supporting-plate to engage andhold the arm in a raised position with its free end extending over theabutment toward the door, and means on the arm for holding an explosivein a position to be brought into contact with the said flange.

4. The combination of a holding-plate, spurs on one end of said plate toengage the door-jamb, a flexible filling-strip pivoted at one end tosaid holding-plate, a supportingplate having a laterally-bent endforming an abutment and pivoted to the holding-plate with thefilling-plate between, a flange on the supporting-plate near one endhaving a projection forming a firing-pin, a stud on the supporting-platenear the abutment, an arm pivotally mounted on the stud at one end andprovided with a loop at its opposite end to receive a cartridge, aspring to actuate said y arm, and a spring projection on thesupporting-plate to hold the arm in a raised position with its upper endprojecting over the abutment toward the door.

In testimony whereof I afiix my signature in presence of two witnesses.

DANIEL N. STElVART.

Witnesses:

JOHN MoPHERsoN, J r., O'r'ro F. BAR'lI-IEL.

